Light diffuser



FIG. 1 is a front elevational view of a light diffuser showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof; and,

FIG. 7 is a perspective view thereof.

The broken lines shown in the drawings illustrating portions of the light diffuser form no part of the claimed design. 

The ornamental design for a light diffuser, as shown and described. 